WO2018051504A1 - 浄化装置 - Google Patents
浄化装置 Download PDFInfo
- Publication number
- WO2018051504A1 WO2018051504A1 PCT/JP2016/077532 JP2016077532W WO2018051504A1 WO 2018051504 A1 WO2018051504 A1 WO 2018051504A1 JP 2016077532 W JP2016077532 W JP 2016077532W WO 2018051504 A1 WO2018051504 A1 WO 2018051504A1
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- WO
- WIPO (PCT)
- Prior art keywords
- exhaust gas
- flow
- purification
- carbon dioxide
- unit
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/246—Air-conditioning systems
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/18—Greenhouses for treating plants with carbon dioxide or the like
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/02—Treatment of plants with carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/50—Carbon dioxide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/32—Direct CO2 mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
Definitions
- This disclosure relates to a purification device that purifies exhaust gas generated when a greenhouse for growing plants is heated.
- exhaust gas is taken out from a chimney of a boiler that heats an agricultural house for facility horticulture at night, and carbon dioxide contained in the exhaust gas is accumulated in a tank. In the daytime, the carbon dioxide accumulated in the tank is supplied to the agricultural house. This promotes photosynthesis of horticultural crops.
- a carbon dioxide adsorbent such as activated carbon or zeolite is stored in the tank.
- the adsorbent adsorbs carbon dioxide contained in the exhaust gas, carbon dioxide is accumulated.
- the purification device purifies exhaust gas generated by combustion for heating a greenhouse in which plants are cultivated.
- the purification device includes an exhaust gas flow path, a flow lower part, and a cooling part.
- the exhaust gas flow path is a flow path for flowing the exhaust gas along a predetermined flow direction, and has a cooling section that goes downward as it goes in the flow direction.
- the lower flow part causes the exhaust gas generated by the combustion to flow into the exhaust gas channel, and causes the exhaust gas to flow down the exhaust gas channel along the flow direction.
- the cooling unit cools the exhaust gas flowing down the cooling section.
- the exhaust gas is cooled when flowing down the cooling section in the exhaust gas passage.
- the cooling section goes downward as it goes in the flow direction.
- the condensed water produced by cooling moves in the cooling section in the downward direction, and the condensed water is suppressed from staying in one place.
- it is suppressed that condensed water flows down toward the opposite side of a flow-down direction (in other words, it flows back in an exhaust gas flow path). For this reason, it can suppress that condensed water flows in into the chimney etc. in the warmer which is a generation source of exhaust gas. Therefore, corrosion due to condensed water caused by cooling the exhaust gas can be suppressed.
- the purification device may further include a purification liquid accumulation unit.
- the purification liquid accumulation unit is provided on the downstream side of the cooling unit in the exhaust gas flow path, stores the purification liquid for purifying the exhaust gas, and the exhaust gas flowing down the exhaust gas flow channel contacts the purification liquid.
- the exhaust gas flow path may further include an inflow section. In the inflow section, the condensed water generated by the cooling of the exhaust gas by the cooling unit is caused to flow into the purification liquid stored in the purification liquid storage unit.
- the purification device may further include a purification unit that is provided on the flow direction side of the purification liquid accumulation unit in the exhaust gas flow path and purifies the exhaust gas flowing down the exhaust gas flow path.
- the purification device may further include an accumulation unit and a supply unit.
- the accumulation unit is provided on the flow direction side of the purification unit in the exhaust gas channel, and accumulates carbon dioxide contained in the exhaust gas flowing down the exhaust gas channel.
- the supply unit supplies the carbon dioxide accumulated in the accumulation unit to the greenhouse.
- carbon dioxide contained in the exhaust gas generated by heating the greenhouse at night or the like can be accumulated in the accumulation unit.
- carbon dioxide accumulated in the accumulation unit can be supplied to the greenhouse. Thereby, the growth of the crop cultivated in the greenhouse can be promoted.
- the purification device may further include a detection unit that detects that combustion for heating the greenhouse is being performed.
- the downstream portion may cause the exhaust gas to flow into the exhaust gas passage and flow down the exhaust gas passage along the flow direction.
- the exhaust gas can be reliably purified by the purification device when the greenhouse is heated.
- FIG. 1 is a block diagram of the carbon dioxide supply device of the present embodiment.
- 2A to 2C are modified examples of the exhaust gas flow path in the carbon dioxide supply device of the present embodiment.
- the carbon dioxide supply device 1 of this embodiment in FIG. 1 is used in a greenhouse 2 for growing plants.
- the greenhouse 2 may be used for facility horticulture.
- the greenhouse 2 is provided with a warmer 3 for heating the room of the greenhouse 2 (hereinafter simply referred to as room) in order to promote the growth of plants.
- the warmer 3 warms the room by burning fuel such as kerosene and heavy oil.
- the carbon dioxide supply device 1 purifies the exhaust gas discharged from the warmer 3 and accumulates carbon dioxide contained in the exhaust gas. Then, the carbon dioxide supply device 1 discharges the exhaust gas after the purification or the like to the outside of the greenhouse 2 (hereinafter simply referred to as “outdoor”). That is, the carbon dioxide supply device 1 has a function as a purification device that purifies exhaust gas generated by heating by the warmer 3. The carbon dioxide supply device 1 supplies the accumulated carbon dioxide into the room during the daytime. Thereby, photosynthesis of indoor plants is promoted.
- the carbon dioxide supply device 1 includes an exhaust gas flow path 10, a heat exchanger 20, a neutralization tank 30, a blower 40, a purification unit 50, an accumulation unit 60, and a control unit 70.
- the exhaust gas channel 10 is a channel for causing the exhaust gas to flow down along the flow-down direction 15.
- the exhaust gas generated by the combustion passes through the discharge channel 4 and is discharged to the outside of the warmer 3.
- the exhaust gas passage 10 is connected to the exhaust gas discharge passage 4 (in other words, a chimney) in the warmer 3.
- the exhaust gas flow channel 10 extends in the horizontal direction or the substantially horizontal direction from a connection point with the discharge flow channel 4 extending in the vertical direction or the substantially vertical direction. All or part of the exhaust gas flowing down the discharge channel 4 flows into the exhaust gas channel 10.
- the exhaust gas passage 10 may extend in a direction inclined upward or downward from, for example, a connection point in the discharge passage 4 extending in the vertical direction or substantially vertical direction. good.
- the exhaust gas flow path 10 may be extended below from the connection location in the horizontal direction in the discharge flow path 4, or the area extended in a substantially horizontal direction.
- the exhaust gas flow path 10 has a lower section 11.
- the lower section 11 goes downward as it goes in the flow direction 15.
- the lower section 11 extends linearly in the vertical direction or the substantially vertical direction.
- the lower section 11 may have a shape in which the flow direction 15 side is inclined downward, for example.
- the lower section 11 may have a curved or bent shape.
- the heat exchanger 20 is provided at a predetermined arrangement position in the lower section 11.
- the heat exchanger 20 cools the exhaust gas flowing down the arrangement position in the lower section 11 from the side by the coolant.
- a liquid such as water is used as the coolant.
- air or the like may be used as the coolant.
- the carbon dioxide supply device 1 may circulate the coolant along a predetermined path. Then, the heat stored in the coolant may be radiated by the heat radiating member provided on the path.
- the neutralization tank 30 is provided in the flow direction 15 side of the heat exchanger 20 in the exhaust gas passage 10. More specifically, the end of the lower section 11 on the flow direction 15 side is connected to the neutralization tank 30.
- a purification liquid 31 is stored in the neutralization tank 30.
- the purification liquid 31 may be an alkaline aqueous solution as an example.
- the exhaust gas flowing down the exhaust gas passage 10 passes through the neutralization tank 30 while being in contact with the purification liquid 31 stored in the neutralization tank 30. Specifically, the exhaust gas flows out of the neutralization tank 30 after passing through the inside of the purification liquid 31. At this time, sulfur oxides, nitrogen oxides, etc. contained in the exhaust gas are removed.
- the blower 40 is provided in the flow direction 15 side of the neutralization tank 30 in the exhaust gas passage 10.
- the blower 40 compresses the gas present in the exhaust gas flow channel 10, thereby causing the gas present in the exhaust gas flow channel 10 to flow down along the flow-down direction 15.
- the exhaust gas flowing down the discharge flow path 4 of the warmer 3 flows into the exhaust gas flow path 10 and flows down along the flow direction 15.
- the gas present in the exhaust gas flow path 10 may be caused to flow along the flow-down direction 15 with a fan or the like, for example.
- the purification unit 50 is provided in the flow direction 15 side of the blower 40 in the exhaust gas flow path 10. Exhaust gas flowing down the exhaust gas passage 10 passes through the purification unit 50. At this time, harmful substances (for example, nitrogen oxides, carbon monoxide, etc.) that adversely affect plant growth are removed from the exhaust gas. Specifically, for example, the purification unit 50 may remove harmful substances by causing the activated carbon to adsorb harmful substances contained in the exhaust gas. Further, for example, the purification unit 50 may remove the harmful substances by oxidizing the harmful substances contained in the exhaust gas with an oxidation catalyst.
- harmful substances for example, nitrogen oxides, carbon monoxide, etc.
- the accumulating unit 60 is provided on the flow direction 15 side of the purification unit 50 in the exhaust gas flow path 10.
- the accumulation unit 60 accumulates carbon dioxide contained in the exhaust gas.
- the accumulated carbon dioxide is supplied indoors.
- the accumulation unit 60 includes at least one adsorption unit that is an aggregate of powdery or granular carbon dioxide adsorbents.
- the adsorbent may be, for example, activated carbon or zeolite.
- Exhaust gas flowing down the exhaust gas passage 10 passes through the inside of at least one adsorption part. At this time, carbon dioxide contained in the exhaust gas is adsorbed on the adsorption part. As a result, the carbon dioxide contained in the exhaust gas is accumulated in the accumulation unit 60. And the exhaust gas in which the density
- the control unit 70 controls the operating state of the blower 40 and the open / closed state of a valve (not shown) provided in the exhaust gas passage 10 or the like. Thereby, the flow of the exhaust gas etc. in the carbon dioxide supply device 1 is controlled.
- the control unit 70 may be configured around a known computer having a CPU, a RAM, a ROM, a storage device, and the like.
- the storage device may be a rewritable nonvolatile storage device (for example, an HDD).
- the CPU of the control unit 70 performs various processes by executing a program loaded from the storage device to the RAM. Thereby, the carbon dioxide supply device 1 is controlled.
- the storage device and the RAM correspond to non-transitional actual recording media.
- the control unit 70 may be configured by a large number of digital circuits and the like. The control unit 70 may perform various processes using hardware instead of software.
- the control unit 70 of the carbon dioxide supply device 1 starts the end of the exhaust gas flow channel 10 (in other words, the connection point between the exhaust flow channel 4 and the exhaust gas flow channel 10). ) And the blower 40 is operated. As a result, all or part of the exhaust gas discharged from the discharge channel 4 flows into the exhaust gas channel 10. The exhaust gas flows down the exhaust gas flow path 10 along the flow-down direction 15.
- the warmer 3 may output an ignition signal to the control unit 70.
- the ignition signal is a signal indicating whether or not the warming machine 3 is heating.
- the control part 70 may detect that the heating by the warmer 3 was started based on the ignition signal input from the warmer 3.
- the discharge channel 4 may be provided with a temperature sensor 4 a that measures the temperature inside the discharge channel 4.
- the temperature sensor 4 a may output a temperature signal indicating the temperature of the discharge channel 4 to the control unit 70.
- the control part 70 may detect that the heating by the warmer 3 was started, when the temperature which a temperature signal shows reaches the predetermined threshold value.
- the exhaust gas flowing into the exhaust gas flow path 10 is cooled by the heat exchanger 20 when passing through the lower section 11. Thereby, the water vapor contained in the exhaust gas is condensed, and condensed water is generated.
- the lower section 11 goes downward as it goes to the flow direction 15 side. For this reason, the condensed water flows down the lower section 11 toward the flow direction 15 and flows into the purification liquid 31 stored in the neutralization tank 30.
- the exhaust gas that has passed through the lower section 11 reaches the neutralization tank 30.
- the exhaust gas passes through the purification liquid 31 and flows out to the flow direction 15 side of the neutralization tank 30. Further, the exhaust gas that has passed through the neutralization tank 30 passes through the purification unit 50.
- the exhaust gas is purified by passing through the neutralization tank 30 and the purification unit 50.
- the exhaust gas that has passed through the purification unit 50 reaches the storage unit 60.
- the exhaust gas passes through at least one adsorption unit in the accumulation unit 60 and flows out toward the flow direction 15 of the accumulation unit 60. At this time, carbon dioxide contained in the exhaust gas is accumulated in the accumulation unit 60. And the exhaust gas which passed the accumulation
- the control unit 70 supplies carbon dioxide in the daytime. Specifically, the control unit 70 closes the starting end valve. Further, the control unit 70 opens a valve different from the starting end valve and operates the blower 40. Thereby, air flows into the exhaust gas flow channel 10 from another flow channel and flows down toward the accumulation unit 60.
- the air that has reached the storage unit 60 passes through at least one adsorption unit in the storage unit 60 and flows out to the flow direction 15 side of the storage unit 60. At this time, the carbon dioxide adsorbed on the adsorption part flows out together with the air. Then, the air flows into the room. Thereby, the carbon dioxide accumulated in accumulation part 60 is supplied indoors.
- the exhaust gas is cooled when flowing down the lower section 11 in the exhaust gas passage 10.
- the lower section 11 goes downward as it goes in the flow direction 15.
- the condensed water produced by cooling moves in the lower section 11 in the flow-down direction 15, and the condensed water is suppressed from staying in one place.
- it is suppressed that condensed water flows down on the opposite side of the flow-down direction 15 (in other words, flows backward in the exhaust gas flow path 10). For this reason, it can suppress that condensed water flows into the discharge flow path 4 of the warmer 3.
- FIG. Therefore, corrosion due to condensed water caused by cooling the exhaust gas can be suppressed.
- the neutralization tank 30 is connected to the lower end of the lower section 11. Thereby, the condensed water produced by cooling the exhaust gas is guided to the purification liquid 31 in the neutralization tank 30 by the lower section 11. For this reason, it is possible to purify the condensed water with the purification liquid 31 and remove the corrosive action of the condensed water. Therefore, corrosion of the carbon dioxide supply device 1 due to condensed water can be suppressed.
- cleaning part 50 is provided in the flow direction 15 side of the neutralization tank 30. FIG. For this reason, nitrogen oxides, carbon monoxide and the like contained in the exhaust gas are removed from the exhaust gas. As a result, exhaust gas can be released into the atmosphere and indoors.
- the carbon dioxide supply device 1 can accumulate carbon dioxide contained in the exhaust gas generated by indoor heating at night in the accumulation unit 60.
- the carbon dioxide supply device 1 supplies the carbon dioxide accumulated in the accumulation unit 60 into the room during the daytime. For this reason, the growth of the crop cultivated in the greenhouse 2 can be promoted.
- the carbon dioxide supply device 1 detects that the warming is started by the warming machine 3 based on a temperature signal from the temperature sensor 4a, an ignition signal from the warming machine 3 or the like.
- the carbon dioxide supply device 1 detects the start of heating, the carbon dioxide supply device 1 causes the exhaust gas to flow into the exhaust gas flow channel 10 from the discharge flow channel 4 to purify the exhaust gas and accumulate carbon dioxide contained in the exhaust gas. For this reason, it is possible to reliably purify the exhaust gas when the greenhouse 2 is heated.
- You may comprise the purification apparatus except the accumulation
- a purification device that includes the exhaust gas flow path 10, the heat exchanger 20, the neutralization tank 30, the blower 40, and the purification unit 50 in the carbon dioxide supply device 1 and does not include the accumulation unit 60 may be configured.
- this purification apparatus may be used for the purification
- the purification device may discharge the purified exhaust gas indoors or outdoors.
- the storage unit 60 has at least one adsorption unit that is an aggregate of carbon dioxide adsorbents. Then, accumulation and supply of carbon dioxide are performed by simply bringing the adsorbing portion into contact with exhaust gas or air without mechanical pressurization and heating.
- the storage unit 60 may store and supply carbon dioxide by a method that involves mechanical pressurization, such as a pressure swing method.
- the storage unit 60 may store and supply carbon dioxide with heating. In such a case, for example, a lithium composite oxide may be used as a member that accumulates carbon dioxide.
- the exhaust gas flow channel 10 is branched from the discharge flow channel 4 of the warmer 3. For this reason, a part of the exhaust gas discharged from the warmer 3 flows into the exhaust gas passage 10.
- the carbon dioxide supply device 1 may be configured such that all of the exhaust gas discharged from the warmer 3 flows into the exhaust gas passage 10.
- the carbon dioxide supply device 1 corresponds to an example of a purification device
- the lower section 11 corresponds to an example of a cooling section and an inflow section
- the heat exchanger 20 corresponds to an example of a cooling section
- the neutralization tank 30 corresponds to an example of a cleaning liquid storage section.
- the blower 40 and the control unit 70 correspond to an example of the flow part.
- the exhaust gas flow path 10, the blower 40, and the control unit 70 correspond to an example of a supply unit.
- the temperature sensor 4a or the control unit 70 corresponds to an example of a detection unit.
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- Chemical Kinetics & Catalysis (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Environmental & Geological Engineering (AREA)
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- Biomedical Technology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Biodiversity & Conservation Biology (AREA)
- Botany (AREA)
- Ecology (AREA)
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- Cultivation Of Plants (AREA)
- Treating Waste Gases (AREA)
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Abstract
Description
また、浄化装置は、排ガス流路における浄化液蓄積部の流下方向側に設けられ、排ガス流路を流下する排ガスを浄化する浄化部をさらに備えても良い。
また、浄化装置は、蓄積部と供給部とをさらに備えても良い。蓄積部は、排ガス流路における浄化部の流下方向側に設けられ、排ガス流路を流下する排ガスに含まれる二酸化炭素を蓄積する。また、供給部は、蓄積部に蓄積された二酸化炭素を温室に供給する。
図1における本実施形態の二酸化炭素供給装置1は、植物を栽培するための温室2に用いられる。具体的には、温室2は、施設園芸に用いられても良い。温室2には、植物の生長を促進するために温室2の室内(以後、単に室内と記載)を加温する加温機3が設けられる。加温機3は、例えば灯油,重油等の燃料を燃焼させることで、室内を加温する。
排ガス流路10は、流下方向15に沿って排ガスを流下させるための流路である。加温機3では、燃焼により生じた排ガスは、排出流路4を通過して加温機3の外部に排出される。排ガス流路10は、加温機3における排ガスの排出流路4(換言すれば、煙突)に繋がっている。一例として、本実施形態では、排ガス流路10は、鉛直方向、又は、略鉛直方向に延びる排出流路4との接続箇所から、水平方向、又は、略水平方向に延びる。排出流路4を流下する排ガスの全部又は一部は、排ガス流路10に流入する。
まず、二酸化炭素供給装置1が、排ガスの浄化、及び、排ガスに含まれる二酸化炭素の蓄積を行う際の動作について説明する。
(1)上記実施形態の二酸化炭素供給装置1によれば、排ガスは、排ガス流路10における下方区間11を流下する際に冷却される。下方区間11は、流下方向15に向かうにつれて下方に向かう。このため、冷却により生じた凝縮水は、下方区間11を流下方向15に移動し、凝縮水が一箇所に留まるのが抑制される。また、凝縮水が、流下方向15の反対側に流下する(換言すれば、排ガス流路10を逆流する)のが抑制される。このため、凝縮水が、加温機3の排出流路4に流入するのを抑制できる。したがって、排ガスの冷却により生じた凝縮水による腐食を抑制できる。
(1)上記実施形態の二酸化炭素供給装置1から二酸化炭素の蓄積及び供給機能を除いた浄化装置を構成しても良い。換言すれば、二酸化炭素供給装置1における排ガス流路10、熱交換器20、中和タンク30、ブロア40、及び、浄化部50を備え、蓄積部60を備えない浄化装置を構成しても良い。そして、該浄化装置は、夜間であるか否かに関わらず行われる、加温機3による温室2の加温により排出される排ガスの浄化に用いられても良い。なお、このような場合には、浄化装置は、例えば、浄化した排ガスを室内外に排出しても良い。
二酸化炭素供給装置1が浄化装置の一例に、下方区間11が冷却区間及び流入区間の一例に、熱交換器20が冷却部の一例に、中和タンク30が浄化液蓄積部の一例に相当する。また、ブロア40及び制御部70が、流下部の一例に相当する。また、排ガス流路10、ブロア40、及び、制御部70が、供給部の一例に相当する。また、温度センサ4a又は制御部70が、検出部の一例に相当する。
Claims (5)
- 植物を栽培する温室を加温するための燃焼にて生じた排ガスを浄化する浄化装置であって、
予め定められた流下方向に沿って前記排ガスを流下させる流路であって、前記流下方向に向かうにつれて下方に向かう冷却区間を有する排ガス流路と、
前記燃焼により生じた前記排ガスを前記排ガス流路に流入させ、該排ガスを、前記流下方向に沿って前記排ガス流路を流下させる流下部と、
前記冷却区間を流下する前記排ガスを冷却する冷却部と、
を備える浄化装置。 - 請求項1に記載の浄化装置において、
前記排ガス流路における前記冷却部の前記流下方向側に設けられ、前記排ガスを浄化するための浄化液を蓄えており、前記排ガス流路を流下する前記排ガスが前記浄化液に接触する浄化液蓄積部をさらに備え、
前記排ガス流路は、前記冷却部による前記排ガスの冷却により生じた凝縮水を、前記浄化液蓄積部に蓄えられた前記浄化液に流入させる流入区間をさらに有する
浄化装置。 - 請求項2に記載の浄化装置において、
前記排ガス流路における前記浄化液蓄積部の前記流下方向側に設けられ、前記排ガス流路を流下する前記排ガスを浄化する浄化部をさらに備える
浄化装置。 - 請求項3に記載の浄化装置において、
前記排ガス流路における前記浄化部の前記流下方向側に設けられ、前記排ガス流路を流下する前記排ガスに含まれる二酸化炭素を蓄積する蓄積部と、
前記蓄積部に蓄積された二酸化炭素を前記温室に供給する供給部と、
をさらに備える浄化装置。 - 請求項1から請求項4のうちのいずれか1項に記載の浄化装置において、
前記温室を加温するための前記燃焼が行われていることを検出する検出部をさらに備え、
前記流下部は、前記検出部により前記燃焼が検出されると、前記排ガスを前記排ガス流路に流入させ、前記流下方向に沿って前記排ガス流路を流下させる
浄化装置。
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| JP2018539481A JP6791973B2 (ja) | 2016-09-16 | 2016-09-16 | 浄化装置 |
| CN201680089223.7A CN109688803B (zh) | 2016-09-16 | 2016-09-16 | 净化设备 |
| KR1020197006829A KR102196642B1 (ko) | 2016-09-16 | 2016-09-16 | 정화 장치 |
| PCT/JP2016/077532 WO2018051504A1 (ja) | 2016-09-16 | 2016-09-16 | 浄化装置 |
| EP16916285.6A EP3494776B1 (en) | 2016-09-16 | 2016-09-16 | Purification device |
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| JP2020080760A (ja) * | 2018-11-28 | 2020-06-04 | 株式会社西部技研 | 二酸化炭素回収施用一体型発電機 |
| JP2022011713A (ja) * | 2020-06-30 | 2022-01-17 | 株式会社ノーリツ | Co2供給装置およびco2供給システム |
| WO2024192474A1 (en) * | 2023-03-21 | 2024-09-26 | Cenagen Pty Ltd | Waste processing method and system |
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| EP3494776A4 (en) | 2020-03-25 |
| JPWO2018051504A1 (ja) | 2019-06-24 |
| EP3494776B1 (en) | 2021-06-02 |
| EP3494776A1 (en) | 2019-06-12 |
| CN109688803B (zh) | 2021-02-26 |
| JP6791973B2 (ja) | 2020-11-25 |
| KR102196642B1 (ko) | 2020-12-30 |
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